Deep SSL/TLS Vulnerability Test
This report provides a deep analysis of the SSL/TLS configuration of external-preview.redd.it. It checks for protocol support, cipher strength, and known vulnerabilities.
Scan Results
Testing all IP addresses (port 443): 151.101.129.140 151.101.193.140 151.101.65.140 151.101.1.140 ----------------------------------------------------- Start 2026-04-19 10:41:03 -->> 151.101.129.140:443 (external-preview.redd.it) <<-- Further IP addresses: 151.101.1.140 151.101.193.140 151.101.65.140 2a04:4e42:400::396 2a04:4e42:200::396 2a04:4e42:600::396 2a04:4e42::396 rDNS (151.101.129.140): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 403 Forbidden HTTP clock skew 0 sec from localtime Strict Transport Security not offered Public Key Pinning -- Server banner snooserv Application banner -- Cookie(s) (none issued at "/") -- HTTP status 403 signals you maybe missed the web application Security headers -- Reverse Proxy banner Via: 1.1 varnish Testing vulnerabilities Secure Renegotiation (RFC 5746) supported (OK) Secure Client-Initiated Renegotiation not vulnerable (OK) -- mitigated (1 successful reneg within 10 in 33s(timeout)) CRIME, TLS (CVE-2012-4929) not vulnerable (OK) BREACH (CVE-2013-3587) no gzip/deflate/compress/br HTTP compression (OK) - only supplied "/" tested POODLE, SSL (CVE-2014-3566) not vulnerable (OK) TLS_FALLBACK_SCSV (RFC 7507) No fallback possible (OK), no protocol below TLS 1.2 offered SWEET32 (CVE-2016-2183, CVE-2016-6329) not vulnerable (OK) FREAK (CVE-2015-0204) not vulnerable (OK) DROWN (CVE-2016-0800, CVE-2016-0703) not vulnerable on this host and port (OK) make sure you don't use this certificate elsewhere with SSLv2 enabled services, see https://search.censys.io/search?resource=hosts&virtual_hosts=INCLUDE&q=A8D0AC32FA983E55C5F2250F4A3B0702A3787F8BA8D1840DE1AB55C4E0ED636E LOGJAM (CVE-2015-4000), experimental not vulnerable (OK): no DH EXPORT ciphers, no DH key detected with <= TLS 1.2 BEAST (CVE-2011-3389) not vulnerable (OK), no SSL3 or TLS1 LUCKY13 (CVE-2013-0169), experimental potentially VULNERABLE, uses obsolete cipher block chaining ciphers with TLS, see server prefs. Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-04-19 10:42:24 [ 91s] -->> 151.101.129.140:443 (external-preview.redd.it) <<-- ----------------------------------------------------- Start 2026-04-19 10:42:24 -->> 151.101.193.140:443 (external-preview.redd.it) <<-- Further IP addresses: 151.101.1.140 151.101.129.140 151.101.65.140 2a04:4e42:400::396 2a04:4e42:200::396 2a04:4e42:600::396 2a04:4e42::396 rDNS (151.101.193.140): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 403 Forbidden HTTP clock skew 0 sec from localtime Strict Transport Security not offered Public Key Pinning -- Server banner snooserv Application banner -- Cookie(s) (none issued at "/") -- HTTP status 403 signals you maybe missed the web application Security headers -- Reverse Proxy banner Via: 1.1 varnish Testing vulnerabilities Secure Renegotiation (RFC 5746) supported (OK) Secure Client-Initiated Renegotiation not vulnerable (OK) -- mitigated (1 successful reneg within 10 in 33s(timeout)) CRIME, TLS (CVE-2012-4929) not vulnerable (OK) BREACH (CVE-2013-3587) no gzip/deflate/compress/br HTTP compression (OK) - only supplied "/" tested POODLE, SSL (CVE-2014-3566) not vulnerable (OK) TLS_FALLBACK_SCSV (RFC 7507) No fallback possible (OK), no protocol below TLS 1.2 offered SWEET32 (CVE-2016-2183, CVE-2016-6329) not vulnerable (OK) FREAK (CVE-2015-0204) not vulnerable (OK) DROWN (CVE-2016-0800, CVE-2016-0703) not vulnerable on this host and port (OK) make sure you don't use this certificate elsewhere with SSLv2 enabled services, see https://search.censys.io/search?resource=hosts&virtual_hosts=INCLUDE&q=A8D0AC32FA983E55C5F2250F4A3B0702A3787F8BA8D1840DE1AB55C4E0ED636E LOGJAM (CVE-2015-4000), experimental not vulnerable (OK): no DH EXPORT ciphers, no DH key detected with <= TLS 1.2 BEAST (CVE-2011-3389) not vulnerable (OK), no SSL3 or TLS1 LUCKY13 (CVE-2013-0169), experimental potentially VULNERABLE, uses obsolete cipher block chaining ciphers with TLS, see server prefs. Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-04-19 10:43:45 [ 172s] -->> 151.101.193.140:443 (external-preview.redd.it) <<-- ----------------------------------------------------- Start 2026-04-19 10:43:46 -->> 151.101.65.140:443 (external-preview.redd.it) <<-- Further IP addresses: 151.101.1.140 151.101.129.140 151.101.193.140 2a04:4e42:400::396 2a04:4e42:200::396 2a04:4e42:600::396 2a04:4e42::396 rDNS (151.101.65.140): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 403 Forbidden HTTP clock skew 0 sec from localtime Strict Transport Security not offered Public Key Pinning -- Server banner snooserv Application banner -- Cookie(s) (none issued at "/") -- HTTP status 403 signals you maybe missed the web application Security headers -- Reverse Proxy banner Via: 1.1 varnish Testing vulnerabilities Secure Renegotiation (RFC 5746) supported (OK) Secure Client-Initiated Renegotiation not vulnerable (OK) -- mitigated (1 successful reneg within 10 in 33s(timeout)) CRIME, TLS (CVE-2012-4929) not vulnerable (OK) BREACH (CVE-2013-3587) no gzip/deflate/compress/br HTTP compression (OK) - only supplied "/" tested POODLE, SSL (CVE-2014-3566) not vulnerable (OK) TLS_FALLBACK_SCSV (RFC 7507) No fallback possible (OK), no protocol below TLS 1.2 offered SWEET32 (CVE-2016-2183, CVE-2016-6329) not vulnerable (OK) FREAK (CVE-2015-0204) not vulnerable (OK) DROWN (CVE-2016-0800, CVE-2016-0703) not vulnerable on this host and port (OK) make sure you don't use this certificate elsewhere with SSLv2 enabled services, see https://search.censys.io/search?resource=hosts&virtual_hosts=INCLUDE&q=A8D0AC32FA983E55C5F2250F4A3B0702A3787F8BA8D1840DE1AB55C4E0ED636E LOGJAM (CVE-2015-4000), experimental not vulnerable (OK): no DH EXPORT ciphers, no DH key detected with <= TLS 1.2 BEAST (CVE-2011-3389) not vulnerable (OK), no SSL3 or TLS1 LUCKY13 (CVE-2013-0169), experimental potentially VULNERABLE, uses obsolete cipher block chaining ciphers with TLS, see server prefs. Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-04-19 10:45:13 [ 260s] -->> 151.101.65.140:443 (external-preview.redd.it) <<-- ----------------------------------------------------- Start 2026-04-19 10:45:14 -->> 151.101.1.140:443 (external-preview.redd.it) <<-- Further IP addresses: 151.101.129.140 151.101.193.140 151.101.65.140 2a04:4e42:400::396 2a04:4e42:200::396 2a04:4e42:600::396 2a04:4e42::396 rDNS (151.101.1.140): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 403 Forbidden HTTP clock skew 0 sec from localtime Strict Transport Security not offered Public Key Pinning -- Server banner snooserv Application banner -- Cookie(s) (none issued at "/") -- HTTP status 403 signals you maybe missed the web application Security headers -- Reverse Proxy banner Via: 1.1 varnish Testing vulnerabilities Secure Renegotiation (RFC 5746) supported (OK) Secure Client-Initiated Renegotiation not vulnerable (OK) -- mitigated (1 successful reneg within 10 in 33s(timeout)) CRIME, TLS (CVE-2012-4929) not vulnerable (OK) BREACH (CVE-2013-3587) no gzip/deflate/compress/br HTTP compression (OK) - only supplied "/" tested POODLE, SSL (CVE-2014-3566) not vulnerable (OK) TLS_FALLBACK_SCSV (RFC 7507) No fallback possible (OK), no protocol below TLS 1.2 offered SWEET32 (CVE-2016-2183, CVE-2016-6329) not vulnerable (OK) FREAK (CVE-2015-0204) not vulnerable (OK) DROWN (CVE-2016-0800, CVE-2016-0703) not vulnerable on this host and port (OK) make sure you don't use this certificate elsewhere with SSLv2 enabled services, see https://search.censys.io/search?resource=hosts&virtual_hosts=INCLUDE&q=A8D0AC32FA983E55C5F2250F4A3B0702A3787F8BA8D1840DE1AB55C4E0ED636E LOGJAM (CVE-2015-4000), experimental not vulnerable (OK): no DH EXPORT ciphers, no DH key detected with <= TLS 1.2 BEAST (CVE-2011-3389) not vulnerable (OK), no SSL3 or TLS1 LUCKY13 (CVE-2013-0169), experimental potentially VULNERABLE, uses obsolete cipher block chaining ciphers with TLS, see server prefs. Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-04-19 10:46:42 [ 349s] -->> 151.101.1.140:443 (external-preview.redd.it) <<-- ----------------------------------------------------- Done testing now all IP addresses (on port 443): 151.101.129.140 151.101.193.140 151.101.65.140 151.101.1.140
About this Scan
This scan uses testssl.sh to check for:
- Protocols: SSLv2, SSLv3, TLS 1.0, TLS 1.1, TLS 1.2, TLS 1.3
- Vulnerabilities: Heartbleed, POODLE, FREAK, Logjam, DROWN, etc.
- Cipher Suites: Weak ciphers, perfect forward secrecy (PFS) support.